Hello, I work in an environment where most of the hosts are not behaving as expected, and I'm planning now for upgrading my vSphere 6.0 environment, to vSphere 6.7. Concerning ESXi upgrade, how does the upgrade process exactly work? meaning, what happens behind the scenes? Does the installer perform a fresh installation retaining the configuration, or what? And, in my case, should I make a fresh installation instead of in-place upgrade?
Thank you,